<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function http({
            success
        }){
            var a = 10;
            success(a);
        }
        function getMusicHttp(callback){
            http({
                success:res=>{
                    callback(res);
                }
            })
        }
        getMusicHttp(res=>{
            console.log(res)
        })
    </script>
</body>
</html>